Name change options are available in almost every other mmo service,

Clean slate or not I think people running around with female names as male characters because of a small vial they drank the night before is too damn funny...
Also people want to change for naming conventions, or for the fact that they didn't really think their name through at creation and lets face it, the first few days was a mess when the servers went live, I think names for most people where just whatever popped in their minds atm and were more concerned about just getting into the darn game.